I had a TV and cheap DVD player to start with, from there I slowly built up our HT setup. These were the steps I took
1) Receiver (Denon 1603) and hooked up some old speakers I had lying around until I could afford better ones - cheap 5.0
2) Upgrade speakers (Wharfedale Modus 1.6 LR, Modus Ctr, Modus 2 surrounds) - 5.0
3) Subwoofer (Velodyne CT100e) - 5.1
4) Upgrade DVD player (Denon 2200)
5) Projector & screen (Infocus X1)
6) Upgrade Center & surround speakers (Wharfedale Modus 1.6 Ctr, Wharfedale DFS surrounds)
7) Upgrade Receiver (Denon 3805) and purchase 2 more DFS surround speakers - 7.1
8) Upgrade Subwoofer (Velodyne DD15)
And that took about 2 years, but we now have a respectable setup that we are happy with and enjoy immensely.
Hope this was what you were after
Cheers